We offer only HPHT diamonds grown by pure technology which accelerates the natural process, improves it and makes it absolutely environmental friendly.
Natural diamond crystals formed millions — sometimes billions — of years ago at depths of 100-200 km in the earth, where the temperature reaches 1100-1300 degrees Celsius, and the pressure is 35-50 kilobars. Such conditions facilitate the transition of carbon from graphite to another modification — a diamond having a cubic structure densely packed with atoms. They are carried to the earth's surface through volcanic activity that creates 'kimberlite pipes'.
The technology based on the latest developments of HPHT (High Pressure High Temperature) method — a harmonious symbiosis of the nature creation, science and human technologies.
With the help of special cubic presses the HPHT method recreates natural geological conditions that occur at a depth of 160 km in the Earth's mantle. The conditions are a unique and powerful combination of extreme pressure and very high temperatures. To grow a diamond in a cubic press, small natural diamond seeds are carefully placed into the bottom of a growth cell. A layer of additional carbon, in form of graphite, is then delicately placed on top of the diamond seeds. The growth cell is then placed into the center of the cubic press and heated to 1,500 degrees C while being subjected to 1 million psi of pressure. At that temperature and pressure, the graphite in the growth cell is melted into a liquid and then very carefully cooled into our favorite form of carbon, a diamond crystal.
As a result of the process Pure diamonds have exactly the same crystal structure, chemical composition, optical properties and physical properties in the form of extracted diamond atoms as in mined diamonds.
Following nature process, our suppliers additionally use an impurity to create fancy color diamonds: boron to get fancy blue, nitrogen to get fancy yellow. Pink diamonds are the result of crystal lattice slight deformation due to specific temperature and pressure regimes.